RandomEngine.h

/**************************************************************************
 * BASF2 (Belle Analysis Framework 2)                                     *
 * Copyright(C) 2015 - Belle II Collaboration                             *
 *                                                                        *
 * Author: The Belle II Collaboration                                     *
 * Contributors: Martin Ritter                                            *
 *                                                                        *
 * This software is provided "as is" without any warranty.                *
 **************************************************************************/
 
#pragma once
#ifndef SIMULATION_KERNEL_RANDOMENGINE_H
#define SIMULATION_KERNEL_RANDOMENGINE_H
 
#include <CLHEP/Random/Random.h>
#include <framework/core/RandomGenerator.h>
 
namespace Belle2 {
  class RandomEngine final: public CLHEP::HepRandomEngine {
  public:
    RandomEngine(): CLHEP::HepRandomEngine() {}
    double flat() override final { return dynamic_cast<RandomGenerator&>(*gRandom).random01(); }
    void flatArray(const int size, double* vect) override final { dynamic_cast<RandomGenerator&>(*gRandom).RndmArray(size, vect); }
    void setSeed(long, int) override final {}
    void setSeeds(const long*, int) override final {}
    void saveStatus(const char[]) const override final {}
    void restoreStatus(const char[]) override final {}
    void showStatus() const override final {}
    std::string name() const override final { return "Belle2::RandomGenerator"; }
    std::vector<unsigned long> put() const override final { return std::vector<unsigned long>(); }
    std::ostream& put(std::ostream& o) const override final { return o; }
    bool get(const std::vector<unsigned long>&) override final { return false; }
    std::istream& get(std::istream& i) override final { return i; }
  };
 
} //Belle2 namespace
#endif // SIMULATION_KERNEL_RANDOMENGINE_H